Datasheet

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SLVS258A − NOVEMBER 1999 − REVISED DECEMBER 1999
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Power-Good detector (TPS60131 and TPS60133)
The PG pin is an open-drain output that is pulled low when the output is out of regulation. When the output
voltage rises to about 90% of its nominal voltage, power-good output is released. PG is high impedance when
the device is disabled. An external pullup resistor must be connected between PG and OUT. The pullup resistor
should be in the 100 kΩ to 1 MΩ range. If the power-good function is not used, the PG-pin should remain
unconnected.
C
o
33 µF
Output
5 V, 300 mA
Input
2.7 V to 5.4 V
IN
IN
NC
C1+
C1−
ENABLE
PGND GND
OUT
OUT
FB
PG
C2+
C2−
C2
2.2 µF
C1
2.2 µF
Off/On
C
i
15 µF
R1
1 MΩ
TPS60131
Power-Good Output
Figure 2. Typical Operating Circuit Using Power-Good Comparator
absolute maximum ratings (see Note 1)
†
Input voltage range, V
I
(IN, OUT, ENABLE, FB, LBI, LBO/PG) −0.3 V to 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential input voltage, V
ID
(C1+, C2+ to GND) −0.3 V to (V
O
+ 0.3 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential input voltage, V
ID
(C1−, C2− to GND) −0.3 V to (V
I
+ 0.3 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current: TPS60130, TPS60131 400 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TPS60132, TPS60133 200 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
−55°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10s 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum junction temperature, T
J
150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: V
(ENABLE)
, V
(LBI)
and V
(LBO/PG)
can exceed V
I
up to the maximum rated voltage without increasing the leakage current drawn by these
inputs.
DISSIPATION RATING TABLE FREE-AIR TEMPERATURE (see Figure 1)
PACKAGE
T
A
≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE T
A
= 25°C
T
A
= 70°C
POWER RATING
T
A
= 85°C
POWER RATING
PWP 700 mW 5.6 mW/°C 448 mW 364 mW
DISSIPATION RATING TABLE CASE TEMPERATURE (see Figure 2)
PACKAGE
T
C
≤ 62.5°C
POWER RATING
DERATING FACTOR
ABOVE T
C
= 62.5°C
T
C
= 70°C
POWER RATING
T
C
= 85°C
POWER RATING
PWP 25 mW 285.7 mW/°C 22.9 mW 18.5 mW